"Revenge": It's always scary on this delicious nighttime soap, as rich folks in the Hamptons behave badly and our heroine (Emily VanCamp) schemes to get payback for her father's betrayal. Tonight, that spooky security guy who works for the Graysons gets in their sights. And that won't be pretty, you can be sure. (10 p.m., KATU)

"American Horror Story": This series would be creepy even if you
watched it with all the lights on, during the sunniest day of the year,
eating sugar-sprinkled cupcakes. So it's no surprise that tonight is the
first of a two-part Halloween episode. Our put-upon couple, Vivien
(Connie Britton) and Ben (Dylan McDermott) already have reason enough to
be freaked out by the house they live in. Tonight, two previous
residents -- who are no longer alive -- decide to make contact. AIEEEEE!
(10 p.m., FX)